Side sash-lock.



A. TURNEY.

SIDE SASH LOCK.

APPLICATION FILED FEB. 20. m5.

Patented Jan.l8,1916@ A TTOR/VEV ALBERT TURKEY, OF KANSAS CITY,MISSOURI.

SIDE SASI'I-LOCK.

Specification of Letters Patent.

Patented Jan. 18, 1916.

Application filed February 20, 1915. Serial No. 9,574.

To all whom it may cormern:

Be it known that I, ALBERT .TURNEY, a citizen of the United States,residing at Kansas City, in the county of Jackson and State of Missouri,have invented, certain new and useful Improvements in Side Sash- Locks,of which the following is a specification.

This invention relates to side sash locks, and my primary object is toproduce a device of this character which looks the sashes againstoperation and takes up the play provided for the free sliding of thesashes, thereby preventing rattling of the sashes in the frame when theWind is blowing.

Another object is to produce a sash lock having a bolt characterized byan initial movement which locks the sashes against free raising andlowering movements and which simultaneously adjusts the sashes if notaccurately positioned-to accommodate subsequent or continued movement ofthe bolt.

Another object is to produce a sash lock characterized by means whichnecessitates a peculiar and definite manipulation to effect the completelooking or unlocking opera-' tions. I i p g Specifically my object is toproduce a lock comprising a bolt having] a cross-head, a sheath for thebolt, and ahollow keeper having a slot or eye; the headof the bolt whenin the keeper preventing operation of the sashes, and being adapted tobe fitted through the slot or eye and then turned crosswise thereof.back of the keeper to lock said bolt against withdrawal andsimultaneously clamp the sashes against rattling movement.

With these general objects in view, the invention consists in certainnovel and peculiar features of construction and combina-. tions of partsas hereinafter described and claimed; and inorder that it may be fullyunderstood reference is to be had to the ac-l companyine; drawing, inwhich Figure 1, is an inner face view of a part of a window casing'andits sashes equipped, with a side sash lock embodying my inven-. tion.Fig. 2, is a horizontal sectionon the line 1111 of Fig. 1, of the casingand upper sash. the sash lock member of the lower sash being shown inelevation. Fig. 3, is a view similar to Fig. 2, but with the sash lockbolt in a different position. Fig. 4, is a detail perspective view ofthe bolt.

Fig. 5, is a plan view of a modified form of sheath for the bolt. Fig.6, is a cross section through the bolt. Fig. 7, is a longitudinalsection through the bolt.

In the said drawing 1 is a stile of a window frame, 2 the parting beador stop, 3 the upper sash, 4 the lower sash and 5 and 6 the meetingrailsof said sashes.

One side rail of the sash 3, is provided Wltll one or more sockets 7bored from its inner side, and set. horizontally in each socket is ahollow circular keeper 8 of less depth than the socket, and provided inits base or bottom with a diametric slot or eye 9 of oblongrectangularform. Preferably the maJor axis of the slot or eye is vertical. Thekeeper is preferably provided with latorally-projecting ears 10, fittingagainst and secured to the sash by screws 11, and between the ears thekeeper is formed with marginal external flanges 12, to stiffen andstrengthen as well as to give it a more finished andattractiveappearance.

Located on the upper side of the lower sash in thesarne vertical planeas the keepore, is a cylindrical sheath 13, provided with laterallyprojecting flanges 141, through which screws extend to secure the sheathto the sash. This sheath is preferably pressed by suitable dies, outofsheet metal of suitable kind and gage, so as to provide a slot 16, fora purpose which is hereinafter explained. Formed in said sheath is atortuous slot, consisting of an oblique portion 17, a transverse portion18, communicating at one end with the front end of the oblique portion,a longitudinal portion 19,.extending forward from the other end of thetransverse portion, and an oblique portion communicating at one end withthe front end of the longitudinal portion and terminating at the otherend in a shallow pocket 21 formed in the front wall of the slot. Theextremities of the slot preferably lie at opposits sides of the axis, ofthe heath.

Fitting slidinglv and rotatably within the sheath is a bolt 22, reducednear its front end to provide a neck 23 capable of turning in the eye orslot of the keeper and termihating in an oblong, rectangular, tapered,head 24, capable of passing through said eye or slot when properlydisposed with relation thereto, and to effect the advance andwithdrawalof the bolt it is provided with a finger piece or handle 25,extending through the slot of the sheath, the finger piece or amount ofgrooves or and its opposite ends lie in transverse planes a distanceapart approximately equal to the depth of the keeper, so that when thehandle 25 is pressed or pulled forwardly through said portion on theslot, the bolt wi l be advanced until its head is within the keeper andin proximity to the slot or eye thereof, in which position it will benoted, it acts as a lock to prevent raising of the lower sash orlowering of the upper sash. It is to be noted also that the parts are soproportioned that the rotation of the bolt incidental to the movement ofthe handle through portion 17 of the slot, will be such that the majoraxis of the head of bolt will extend cross wise of that of the slot oreye of the keeper and hence admit of sufficient vertical play of eithersash to produce a decided click through contact of the bolt head withthe keeper, liable to attract the attention of a l member of thehousehold. It will be further noted that the said oblique portion of theslot causes the tapered bolt head to in effect, screw its way intothekeeper in the event that the boltand keeperare not perfectly alinedthrough a slight Verticalor lateral displacement of either or bothsashes,t his displacement being possible because of the play which thesashes must have to operate with the requisite freedom. If the sashesare relatively displaced as suggested, the

tapered head of thebolt, because of the leverage possessed through itsscrewing action, is easily caused to exert suflicient pressure againstthe wall of the keeper to restore the sashes to proper relativeposition.

After'the sashes have been locked asde-' scribed, the handle is causedto traverse the transverse portion 18 of the slot to reversely rotatethe bolt until the head, thereof occupies a vertical position. Thehandle is then advanced through the longitudinal portion 19 of the slotto slide the'bolt forward until its neck occupies the slot or eye of thekeeper and its head is spaced beyondthe latter. The handle is thencaused to traverse the second oblique portion of theslot and therebyrotate thebolt reversely to its last rotation, thisreverse rotationdisposing the head of the bolt crosswise of the slot or eye of thekeeper and incidentally iu partin g backward movement to the bolt tocause its slot or eye v head to press the upper sash and pull the lowersash against the parting head or stop if one or both sashes are partlyopen, or to clamp the meeting, ralls of the sashes together if thelatter are both closed, the

entrance of the handle into the pocket 21, guarding against slippingthereof and consequent accidental back rotation of the bolt.

If it is desired to provide for a greater range of take-up or adjustmentof the sashes without increasing thelength of the bolt or changing therelative, position of the keeper, the rear sides of the head of the boltmay be provided with a cam surface 26, adapted to "engage the walls ofthe slot or eye and exert pressure thereon tending to clamp the sashesagainst the parting'beador stop or to clamp the meeting rails of thesashes together,

it being apparent that the cam surface of the head and the cam portion20 of the slot shoot a greater'range of adjustment or take-' upthaneither could accomplish alone with out increasing its pitch orlength. To increase its pitch would require the application of morepower by the operator. To

' increase {its length materially would be impracticable because itwould make more inconvenient the gripping of the handle, as will bereadily seen by reference to Fig. 1.

Reverse manipulation of the handle restores the parts to their initialor unlocked position, and in this connection it is desired to callattention to the fact that the peculiar tortuous course which the handlemust follow, would make -it somewhat puzzling for a person unfamiliarwith the lock, to unfasten it from the outside of the window, eventhough such person had free access to the handle through the removal ofa section of glass. If a person operated thebolt to the extentofsliding'it back through portions 20, 19, and 18 of the sl0tthefamiliar course of an ordinary door bolt,he would unclampthe sashes butwould still be unable to operate either of them, as the head of'the boltwould'be in the keeper; An unsuccessful attempt at this juncture to openeither sash might produce a noise liable to alarm the household oraltogether discourage the attempt toetfectanentrance;

The modified construction shown is even more puzzling of operation inthat it is not only necessary tocause the handleto follow the course ofthe slot, but it is also'neces'sary to partially rotate the handlearound its own axis,v at one or more points where the slot changes itscourse, and at the front end to effect the removal of the handle frompocket 21, c c Referring now to the last-named construction, it will beseen that the handle is capable of turning or swiveling in the bolt, andthat where it extends through the sheath it is of 'elongated or ellipticform in cross section, as at 27, themajor axis of the ellipse beinggreater than the width of the slot of the sheath at all points exceptwhere the course of the slot sharply changes and at the pocket endthereof. It will thus be seen that unless the handle is partiallyrotated at each sharp turn of the slot it could not make the turn andthat this prerequisite to further movement would be puzzling to oneunfamiliar with the lock, and perhaps discourage any further attempt toperform the unlockingoperation. The necessity also of rotating thehandle to withdraw it from the pocket 21 and dispose it for free travelin the cam portion 20 of the slot would also not immediately occur to aperson unfamiliar with the construction, it being borne in mind that thelock would not be under observation of such person and that it would bein a position where it could not be conveniently handled. In Fig. 5 theoffsets or pockets of the tortuous sheath slot at the junctions of theportions 18 and 19, and 19 and 20, are respectively identified byreference characters 28 and 29, and a reference to the arrows in Fig. 5,will show how the handle must be rotated as it enters pockets 28 and 29,respectively, before the withdrawal of the bolt can be continued.

In both the rigid and swiveled handle constructions, it is preferable tosecure the handle permanently to the bolt and this is best accomplishedby fitting the handle clear through the bolt and upsetting or headingits lower end; To thusupset or head the handle, it is necessary to haveaccess to it with a suitable tool or projection, and as it cannot beupset or headed until the bolt is fitted in the sheath, it is necessaryto provide an opening in the bottom of the latter, this opening beingrepresented by the slot 16, hereinafter mentioned.

As the proper manipulation of the bolt and the functions of the keeperand vari ous parts of the tortuous slot of the sheath have beenexplained, no recapitulation of the operation is necessary other than tocall attention to the fact that the extremities of the sheath will tendto confuse a person attempting the withdrawal of the bolt, who isfamiliar only with the conventional type of slide bolt and sheath, inwhich both ends of the slot of the sheath extend in the same direction.It will also be well to state that the keeper adjacent the lower edge ofthe upper sash is adapted for engagement by the bolt when it is desiredto lock both sashes in closed position, and that the keeper or keepersabove are provided for engagement by the bolt when it is desired forpurposes of ventilation to lock the upper sash partly lowered, the lowersash partly raised, or both sashes partly open.

From the above description, it will be apparent that I have produced aside sash lock possessing the features of advantage enumerated asdesirable, and while I have illustrated and described the twoembodiments which at this time, I consider most valuable, it is to beunderstood that I reserve the right to make all changes falling withingthe spirit and scope of the appended claims.

I claim:

1. Thecombination with relatively movable parts of a keeper, mounted onone of said parts, provided with an elongated eye, a sheath mounted onthe other part and provided with a tortuous slot comprising a transverseportion, a longitudinal portion communicating at one end with one end ofthe transverse portion and a pair of oblique portions extending inopposite directions from the remote ends of said longitudinal andtransverse portions, a. bolt extending slidingly and rotatably in saidsheath provided with an elongated portion capable of passing through theeye of the keeper and a handle projecting radially from the bolt throughthe slot of the keeper and occupying one extremity of the tortuous slotwhen the bolt is withdrawn and the other extremity of the tortuous slotwhen the bolt is fully advanced, the bolt fitting loosely in the keeperbut not in the eye thereof when the said handle occupies the transverseportion of the tortuous slot or the adjacent end of tile communicatingoblique portion of the s 0t.

2. The combination with relatively movable parts, of a. sheath mountedon one of the parts, provided with a tortuous slot and a pocket openinginto the said slot at a bending point thereof, a bolt fitting slidinglyand rotatably in said sheath and adapted to engage the other of saidparts to lock the same, and a handle projecting from the bolt throughsaid slot, said handle being of oblong rectangular form at the pointwhere it extends through the slot so as to be incapable of turning inthe slot except when engaged with said pocket.

3. The combination with the upper and lower sashes of a window, of ahollow keeper mounted within one of the sashes and a bolt sheath mountedon the other sash, the sheath having a. tortuous slot and provided atone or more of the bending points thereof with an offset or pocket, abolt fitting slidingly and rotatably in the sheath, and a handleswiveled to and projecting radially from the bolt and through said slot;the portion of the handle extending through the slot being ofsubstantially elliptic form in cross section and of such proportion thatit cannot rotate in the slot in its travel therethrough to advance orwithdraw the bolt ex cept when it enters a pocket.

4. In a locking device, a sheath provided with a tortuous slot havingthree bending points and a pair of pockets each opening into the slot ata bending point thereof, a bolt fitting slidingly and rotatable in saidsheath, and a radial handle for and swiveled to said bolt and extendingthrough the slot of the sheath; said handle at the point Within the slotbeing of oblong rectangular form and so proportioned that it cannottravel past the said pockets ithout entering the same and being givenswivel movement in the bolt While occupying a pocket.

' 5. The combination With tWo movable parts, of a sheath carried by oneof said parts, provided With a tortuous slot, a bolt fitting in thesheath and capable of sliding and turning therein until engaged with theother part, and a; handle sWiveled to and Copies of this patent may beobtained for projecting from the bolt and through the tortuous slot ofthe sheath; said handle being of oblong-rectangular form in crosssection Where it extends through said slot movement. I

In testimony whereof, I aflix my sig-- nature, in the presence of tWoWitnesses. 1 ALBERT TURNEY.

Witnesses HELEN C. Ronenns, G. Y. THORPE.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C. a I a

